Simulation of Laminated Glass Loaded by Air Blast Waves

Laminated glass is widely used in the building envelope and it can protect the interior of a structure from the influence of an air blast. In this study several numerical models are investigated in order to represent the failure of the glass as well as of the interlayer. Layered shell elements (e.g. Mindlin) with special failure criteria are efficiently employed. For the PVB an elastic-plastic material law is used. For the glass, after the failure at an integration point, stresses there are set to zero under tension, while the material can still react to compression. If the interlayer reaches the failure criterion of PVB, the element is eroded. Older and new experiments with laminated glass are used to validate the numerical results. The experiments include both the failure of the glass sheets and of the PVB interlayer. It is shown that the layered model can adequately represent the experiments, also in cases where the interlayer fails. Results of a full 3D solid model are also presented and discussed.

LARCHER Martin;  TEICH Martien;  GEBBEKEN Norbert;  SOLOMOS George; 

2011-01-31

Universitat der Bundeswehr Munchen

JRC62824

https://publications.jrc.ec.europa.eu/repository/handle/JRC62824,